期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 346, 期 7, 页码 849-854出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200404013
关键词
alkenes; ketones; oxidation; palladium; silica-supported PAMAM dendrimers
Silica-supported polyamidoamine (PAMAM) dendrimers with different spacer lengths were prepared. After the introduction of diphenylphosphino groups, complexation to dibenzylidenepalladium(0) gave the desired silica-supported dendrimer-palladium catalyst complexes GO to G4-C2-Pd. These catalysts showed activity towards the oxidation of terminal alkenes to methyl ketones. A dependence of catalytic activity on the spacer length of the diamine in PAMAM was observed.
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